Ask a Spaceman!4 Helmi 2025

AaS! 241: Could We Travel to Parallel Universes?

Where do parallel universes exist? Could we use wormholes to travel to them? What does time travel have to do with all this? I discuss these questions and more in today's Ask a Spaceman!

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Jaksot(278)

AaS! 272: Are Neutrinos Their Own Evil Twins?

What does "antimatter" actually mean? Can a particle be its own opposite? What would happen to it, and what does this have to do with a missing scientist? I discuss these questions and more in today's...

19 Touko 34min

AaS! 271: What Happens When Light Goes Boom?

How can matter ever go faster than light? What happens when it does? Who discovered this, and what is it good for? I discuss these questions and more in today's Ask a Spaceman! Support the show: http:...

5 Touko 21min

AaS! 270: Is the Universe…Defective?

What did the universe do to make so many defects? What happens when they get trapped? And could they be hiding right in front of our noses? I discuss these questions and more in today's Ask a Spaceman...

21 Huhti 28min

AaS! 269: Why Are Interstellar Objects So Weird?

What makes the interstellar comet 3I/Atlas so weird? Why are we finding so many interstellar visitors recently? How are they made, and where do they come from? I discuss these questions and more in to...

7 Huhti 27min

AaS! 268: What are Little Red Dots?

What do we find when we push the James Webb Space Telescope to its limits? Are Little Red Dots newborn galaxies or old black holes? What are they teaching us about the early universe? I discuss these ...

17 Maalis 32min

AaS! 267: Is the Universe Older than We Think?

How can anyone agree on the age of the universe? And how can we be so confident if it's all just a bunch of models? What if the universe is extra lumpy, does that change anything? I discuss these ques...

3 Maalis 27min

AaS! 266: Is the Universe Made of Math?

Why is math so effective at describing the universe? What is reality is made of math? What does it mean for us to be conscious beings in a mathematical structure? I discuss these questions and more in...

17 Helmi 31min

AaS! 265: Does Antimatter Fall Up?

What is the weak equivalency principle? How was antimatter discovered and why is it the perfect thing to put gravity to the test? What did the CERN experiment discover? I discuss these questions and m...

3 Helmi 27min